Empty loops.

compiler/testData/ir/irText/for.kt

@@ -1,3 +1,7 @@
+fun testEmpty(ss: List<String>) {
+    for (s in ss);
+}
+
 fun testIterable(ss: List<String>) {
     for (s in ss) {
         println(s)

compiler/testData/ir/irText/for.txt

@@ -1,4 +1,17 @@
 FILE /for.kt
+  FUN public fun testEmpty(/*0*/ ss: kotlin.collections.List<kotlin.String>): kotlin.Unit
+    BLOCK_BODY
+      BLOCK type=kotlin.Unit operator=FOR_LOOP
+        VAR val tmp0_iterator: kotlin.collections.Iterator<kotlin.String>
+          CALL .iterator type=kotlin.collections.Iterator<kotlin.String> operator=FOR_LOOP_ITERATOR
+            $this: GET_VAR ss type=kotlin.collections.List<kotlin.String> operator=null
+        WHILE label=null operator=FOR_LOOP_INNER_WHILE
+          condition: CALL .hasNext type=kotlin.Boolean operator=FOR_LOOP_HAS_NEXT
+            $this: GET_VAR tmp0_iterator type=kotlin.collections.Iterator<kotlin.String> operator=null
+          body: BLOCK type=kotlin.Unit operator=FOR_LOOP_INNER_WHILE
+            VAR val s: kotlin.String
+              CALL .next type=kotlin.String operator=FOR_LOOP_NEXT
+                $this: GET_VAR tmp0_iterator type=kotlin.collections.Iterator<kotlin.String> operator=null
   FUN public fun testIterable(/*0*/ ss: kotlin.collections.List<kotlin.String>): kotlin.Unit
     BLOCK_BODY
       BLOCK type=kotlin.Unit operator=FOR_LOOP

compiler/testData/ir/irText/whileDoWhile.kt

@@ -1,7 +1,9 @@
 fun test() {
     var x = 0
+    while (x < 0);
     while (x < 5) x++
     while (x < 10) { x++ }
+    do while (x < 0)
     do x++ while (x < 15)
     do { x ++ } while (x < 20)
 }

compiler/testData/ir/irText/whileDoWhile.txt

@@ -3,6 +3,11 @@ FILE /whileDoWhile.kt
     BLOCK_BODY
       VAR var x: kotlin.Int
         CONST Int type=kotlin.Int value='0'
+      WHILE label=null operator=WHILE_LOOP
+        condition: CALL .LT0 type=kotlin.Boolean operator=LT
+          arg0: CALL .compareTo type=kotlin.Int operator=LT
+            $this: GET_VAR x type=kotlin.Int operator=null
+            other: CONST Int type=kotlin.Int value='0'
       WHILE label=null operator=WHILE_LOOP
         condition: CALL .LT0 type=kotlin.Boolean operator=LT
           arg0: CALL .compareTo type=kotlin.Int operator=LT
@@ -28,6 +33,11 @@ FILE /whileDoWhile.kt
               CALL .inc type=kotlin.Int operator=POSTFIX_INCR
                 $this: GET_VAR tmp1 type=kotlin.Int operator=null
             GET_VAR tmp1 type=kotlin.Int operator=null
+      DO_WHILE label=null operator=DO_WHILE_LOOP
+        condition: CALL .LT0 type=kotlin.Boolean operator=LT
+          arg0: CALL .compareTo type=kotlin.Int operator=LT
+            $this: GET_VAR x type=kotlin.Int operator=null
+            other: CONST Int type=kotlin.Int value='0'
       DO_WHILE label=null operator=DO_WHILE_LOOP
         body: BLOCK type=kotlin.Int operator=POSTFIX_INCR
           VAR val tmp2: kotlin.Int